I am thinking you have a speed problem with your fan? There are no resistors. and my 89 olds has a transistorized speed controller board on the firewall close to the fan. It gets voltage input from inside the car to make it speed up or down. If the input is high from your dash switch the output to the fan will be high - full 12 volts. A voltmeter is required to check this after you find the control board on the firewall. if fan runs non stop on high remove 2 nuts holding entire fuse & relay assm. on rt side firewall.pull this unit forward & you see 2 wire connectors underneath attached to relay.a tight plastic pin on each side is pulled out forward & then connectors can be pulled up.undo the 3 larger hex screws & relay will lift out.undoing 2 smaller hex screws first will allow relay to fall into heater box.this is a bad thing
The blower resistor is located behind the dashboard. It is found behind the heater near the center of the vehicle.
It is located on the blower motor housing and is white in color. You have to take the blower motor assembly out as far as I know to get to it.
Probably the blower motor resistor is shot.
under the blower motor housing. to the right
Most likely and bad blower motor resistor.
If yourtalking about the heater blower, I believe they are hidden behind the glove box inner liner.
Looking at the picture in my Haynes repair manual it looks like the blower motor resistor is in the engine compartment mounted just to the right of your blower motor when looking from the front of the Explorer - Helpfull
CHECK THE BLOWER HOUSING. IT SITS INSIDE THE HOUSING AND IS SECURED BY SCREWS ON TOP OF THE BLOWER HOUSING.
by the blower motor there is a resistor connection, you will find it melted the blower motor is bad. it draws to much power causing the connection to get hot and melt and burn. you will have to change the connector and the blower motor. the blower is still working but its drawing to much power, the motor windings are shorted out inside. disconnect the connector from the resistor and you will see it.
Much of the Dash heating/AC system in our 1992 32-foot Winnebago Chieftain was supplied by SCS/Frigette of Forth Worth , Texas. (www.scsfigette.com) The blower motor resistor is accessed by opening the hood of the motorhome. The four-wire blower motor resistor connector is located on the front of the SCS evaporator assembly directly behind the passenger side headlights. The resistor is accessed by unscrewing the two phillips-head screws on either side of the blower motor connector and prying the resistor assembly out of the evaporator assembly with a regular screw driver.
Blower resistor is under Drivers' side of center console
The blower resistor on the 1992 BMW 325i is located under the center console. It is found on the driver's side.